Based on the gravity,magnetic and seismic data from Qiangtang Basin,by utilizing the software GM SYS,the authors interpreted the data including gravity,magnetic method and seismic bitmap for the three kinds of geophysical profiles under simulated condition,and finished four profiles.

An edge-preserving smoothing algorithm of seismic image using nonlinear anisotropic diffusion equation;

A model of nonlinear anisotropic diffusion for increasing signal to noise ratio of seismic image;

A study of seismic mapping in frontlands of hills with steeply dipping structures,;

The design and implementation of seismogram database system of the seismic station;

This paper describes the seismic phase analysis of the teleseism and extreme distantearthquakes, The contents include : difference in seismic wave and seismic phase,thecomplexity of seismogram,the seismic phase characteristics and the method of analysis.